The Park Tool BBT-22 is a shop quality tool for installing and removing Shimano® and ISIS Drive™ splined 20-tooth bottom bracket cups. Made from investment cast steel, the BBT-22 utilizes a flat tooth profile to ensure maximum engagement with the bottom bracket cup. Can be used with a 3/8" drive torque wrench, 3/8" ratchet driver, 32mm wrench, FRW-1 Freewheel Remover Wrench, or 1" wrench.